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I have installed (on Windows machine (Win7 64bit)):

  • python 3.5.0 and sympy 0.7.6.1
  • octave 4.0.0.0 and symbolic 2.2.2

This is what I get when I try to do anything with more than one operator: 

>> pkg load symbolic
>> syms x
OctSymPy v2.2.2: this is free software without warranty, see source.
Initializing communication with SymPy using a popen2() pipe.
Detected Windows: using "winwrapy.bat" to workaround Octave bug #43036
Some output from the Python subprocess (pid 28092) might appear next.

OctSymPy: Communication established.  SymPy v0.7.6.1.
Python 3.5.0 (v3.5.0:374f501f4567, Sep 13 2015, 02:16:59) [MSC v.1900 32 bit (Int
el)]
>> x^2
ans = (sym)

   2
  x
>> x^2 + 2*x + 1
PYTHON: Error in var export
Resetting the octsympy communication mechanism
Closing the Python pipe...
error: python_cmd: unexpected return
error: called from
    python_cmd at line 143 column 6
    mtimes at line 42 column 5
>>

What is wrong?

V-X
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  • Is there still a problem with the current version? The example works for me on a Mac with Octave 4.2.1 and Symbolic 2.5.0. – pixel May 08 '17 at 17:39

0 Answers0